Packaged water cooled liquid chillers in + class energy efficiency for indoor installation. Cooling Capacity: 625 1179 kw Screw compressors Shell and tube heat exchangers Double refrigerant circuit EER up to 5,34 ESEER up to 6,20 rcgroup.it
Chillers : Packaged water cooled liquid chillers in + class energy efficiency for indoor installation, equipped with screw compressors and shell and tube heat exchangers Cooling Capacity: 625 1179 kw HIGHEFFICIENCY +CLSS SHELL CLSS R134a MIN FETURES Water cooled liquid chiller in + class energy efficiency. 7 models available, for a wide selection opportunity. verage step of 75kW. EER up to 5,34. ESEER up to 6,20. Twin-screw compressors. Double refrigerant circuit. R134a Refrigerant charge. Electronic expansion valve. Shell and tube heat exchangers. Suitable for indoor installation. MIN BENEFITS High EER and ESEER, + class energy efficiency. vailability of kit for the reduction of the noise. vailability of partial heat recovery system. Easily of maintenance. Eurovent Certification. INDOOR INSTLLTION The machines are designed for indoor installation. ELECTRONIC EXPNSION VLVE The electronic expansion valves are synonymous of an higher energy efficiency and stability of the system. + CLSS ENERGY EFFICIENCY The best and most accurate components applied to the chillers. WORKING LIMITS IN COOLING MODE Evaporator chilled water outlet temperature: -11 15,5 C Condenser outlet water temperature: 21 49 C MEHITS S.p.. - RC Brand G_CHL_RCW9.3 171
COMPONENTS FRMEWORK Base, self supporting frame and panelling in epoxy painted galvanized steel sheet. Colour: RL 9002 COMPRESSORS Twin screw semi-hermetic compressors with highly efficient screw profile and high peripheral speed, optimized for R134a refrigerant. Integrated discharge check valve. Flanged-on oil separator. Integrated overpressure valve. Replaceable cartridge type oil filter. Oil flow switch. Valves for oil filling and discharge. Sight glass Electronic protection device that includes: - Electric motor thermal protection via internal winding temperature sensors. - Phase sequence electronic relay - Sensor on refrigerant discharge for temperature monitoring, 2-pole 3-phase electric motor with Part-Winding starting for model 620 V2 2-pole 3-phase electric motor with Star / Delta starting for all other machines. Stepless capacity control, 50 100% for each compressor. Crankcase heater. Terminal box with IP54 enclosure class. Rubber supports. Chillers ELECTRICL PNEL In accordance with EN60204-1 norms, suitable for indoor installation, complete with: Main switch with door lock safety. Fuses for each compressors. Contactors for each compressors (2 contactors for Part-Winding start system 3 contactors for Star / Delta start system). Compressor Part-Winding start system for model 620 V2 Compressor Star / Delta start system for all other machines. Transformer for auxiliary circuit and microprocessor supply. Panel with machine controls. Power supply: 400/3/50. CONTROL SYSTEM MP.COM microprocessor system with graphic display for control and monitor of operating and alarms status. The system includes: - Voltage free contact for remote general alarm. - Main components hour-meter. - Integrated Data logger function for the recording of events and alarms. - Nonvolatile Flash memory for data storage. - Menu with protection password. EVPORTOR Shell and tube evaporator optimized for R134a refrigerant. Tubes with a helical rifled internal surface. Intermediate baffles positioned to ensure optimum speed of the fluid and low pressure drops. Single circuit on water side and independent circuits, one for each compressor, on refrigerant side. Shell, header, tube sheets, made of carbon steel, tubes in Cu. nticondensate insulation made of polyurethane. Temperature sensors on water inlet and outlet. Hydraulic connection with grooved end complete with flexible joint and adapter pipe for solder connection. CONDENSER One condenser for each refrigerant circuit: Shell and tube condenser optimized for R134a refrigerant. Shell, header, tube sheets made of carbon steel, tubes in Cu. Hydraulic connection with grooved end complete with flexible joint and adapter pipe for solder connection. REFRIGERNT CIRCUIT Components for each refrigerant circuit: Electronic expansion valve that allows high performance and system efficiency thanks to a timely and accurate response to changes in temperature and pressure. Economizer. The system includes: - Copper brazed plate type with cover plates, plates and connections in ISI 316 stainless steel. - nticondensate insulation made of polyurethane. - Intermediate electronic expansion valve. Sight glass. Filter dryer on liquid line. Service valves on liquid line. Service valves on gas discharge. Safety valve on low pressure side. Safety valve on high pressure side. Pressure transducers with indication, control and protection functions, on low and high refrigerant pressure and oil pressure. High pressure safety switch with manual reset. Refrigerant circuit with copper tubing with anticondensate insulation of the suction line. Plastic capillary hoses for pressure sensors connection. R134a refrigerant charge. 172 G_CHL_RCW9.3 MEHITS S.p.. - RC Brand
Chillers OPTIONL CCESSORIES 171 - Rubber antivibration holders (kit) 118 - Kit brine (for glycol solution production up to -6 C) 119 - Kit brine B (for glycol solution production up to -12 C) 450 - Partial heat recovery 731 - Safety water flow switch 650 - Compressor thermal relay 605 - Compr. power factor capacitor - 0,9 550 - Stop valve on compressor suction line 780 - Noise absorption box 83 - Compressor operation indicator 85 - Demand limit 88 - nalog set point compensation 960 - Free contact enable plant pump 963 - Free contact enable source pump 1003 - nalogic flowmeter 1005 - Power supply analyzer 1009 - Multimeter kit 919 - Clock card 923 - RC-Com MBUS/JBUS Serial board 926 - LON Serial board 931 - BCnet Ethernet - SNMP - TCP/IP Serial board 932 - BCnet MS/TP Serial board 942 - Serial card for GSM Modem 943 - Data Logger 962 - Kit modem GSM 957 - Plantwatch without modem 930 - Remote graphic terminal kit 889 - Master plant SEQUENCER RC CLOUD PLTFORM 620 V2 720 V2 820 V2 970 V2 1080 V2 1150 V2 1180 V2 available accessory; - not available accessory TECHNICL DT OPTIONL STNDRD Cooling capacity (1) kw Unit power input kw Evaporator water flow rate m³/h Evaporator pressure drop kpa Condenser water flow rate m³/h Condenser pressure drop kpa Compressors Quantity n. Capacity control % Refrigerant Total refrigerant charge (optional excluded) kg Gas circuits n. Power supply V/Ph/Hz Max operating current (MOC) Max unit operating current (FL) Unit starting current (LR) EER - Eurovent standard (1) kw/kw ESEER Sound power level [Lw] (2) db() verage sound pressure level [Lpm] (3) db() Net weight kg Hydraulic connections Evaporator IN/OUT - OD (4) Ø mm Condenser IN/OUT - ISO 228/1 n x Ø Condenser IN/OUT - OD (4) Ø mm Partial heat recovery (5) Heating capacity kw Compressor soundproof box Sound power level [Lw] (2) db() verage sound pressure level [Lpm] (3) db() 620 V2 720 V2 820 V2 970 V2 1080 V2 1150 V2 1180 V2 623 717 813 961 1064 1123 1160 117 135,6 156,7 185,7 203,2 215,1 221,2 107 123 140 165 183 193 199 25 22 28 32 18 24 25 126 126 163 181 181 231 238 21 49 39 46 23 40 34 twin-screw twin-screw twin-screw twin-screw twin-screw twin-screw twin-screw 2 2 2 2 2 2 2 25 100% 25 100% 25 100% 25 100% 25 100% 25 100% 25 100% R134a R134a R134a R134a R134a R134a R134a 171 171 156 216 216 211 211 2 2 2 2 2 2 2 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 283 310 362 406 456 456 502 368 354 396 566 566 566 630 576 589 711 639 664 664 716 5,39 5,26 5,36 5,34 5,28 5,19 5,20 6,20 6,18 5,96 5,92 6,09 6,10 6,10 96,8 96,8 97,6 97,6 97,6 101,2 101,2 79,0 79,0 82,0 82,0 82,0 82,0 82,0 4009 4051 4325 5439 5459 5565 5649 219,1 219,1 219,1 219,1 219,1 219,1 273 3 3 - - - - - - - 114,3 114,3 114,3 114,3 114,3 81,3 93,9 107,0 125,0 140,0 149,0 153,0 93,8 93,8 94,6 94,6 94,6 98,2 98,2 76,0 76,0 79,0 79,0 79,0 79,0 79,0 1. Referred to chilled water temperature 12/7 C 0% glycol solution; water temperature to the condenser 30/35 C 0% glycol solution. 2. Sound power level [Lw] according to ISO EN 9614-2 3. verage sound pressure level [LPm] 1m far according to ISO EN 3744. 4. Hydraulic connection with grooved end complete with flexible joint and adapter pipe for solder connection. 5. Referred to chilled water temperature 12/7 C 0% glycol solution; water temperature to the condenser 30/35 C 0% glycol solution; water temperature heat recovery 40/45 C 0% glycol solution. Fouling factor of the exchangers 0,043 m² K/kW. MEHITS S.p.. - RC Brand G_CHL_RCW9.3 173
Chillers DIMENSIONS (mm) a b c 620 V2 3514 1060 1770 720 V2 3514 1060 1770 820 V2 3982 1057 1770 970 V2 3818 1269 1991 1080 V2 3818 1269 1991 1150 V2 3818 1269 1991 1180 V2 3818 1269 1991 c b a 174 G_CHL_RCW9.3 MEHITS S.p.. - RC Brand
RC Brand: Via Roma 5-27010 Valle Salimbene (PV) - Italy Tel +39 (0) 382 433 811 - Fax +39 (0) 382 587 148 www.rcgroup.it www.melcohit.com Eco-Changes is the Mitsubishi Electric Group's environmental statement, and expresses the Group's stance on environmental management. Through a wide range of businesses, we are helping contribute to the realization of a sustainable society.